It could be the Life Expectancy of the Key generated, or authentication token for the user. Just a guess, because I had this occur during an interview, and I was using Ingress to push to my room, with Egress multicasting to my social platforms. After an hour it dropped, and it was due to my Authenitcation token, and my guest. Once we logged out and logged back in, it went good. So, I raised the Life Expectancy of my tokens, and I have had no issues.
I pull my guest into obs with browser source, and mix them in OBS Studio, and use Ingress to push us both back to the room. Then, I use egress to grab the room, with track_composite, and multicast to my social platforms. Or, I use Egress just to record the Interview on my server, for later playback. That is more for testing, since I record in OBS too. I’ll run one later, and see what I come up with for ya. Just to help me understand it too.